package cn.itcast.bos.service.impl;

import java.util.List;
import java.util.Set;

import javax.persistence.criteria.CriteriaBuilder;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.Predicate;
import javax.persistence.criteria.Root;

import org.apache.poi.ss.formula.functions.T;
import org.apache.shiro.authz.annotation.RequiresPermissions;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.data.jpa.domain.Specification;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import cn.itcast.bos.domain.base.Courier;
import cn.itcast.bos.repository.CourierRepository;
import cn.itcast.bos.service.CourierService;
@Service 
@Transactional
public class CourierServiceImpl implements CourierService {
	@Autowired
	private CourierRepository courierRepository;

	@Override
	@RequiresPermissions(value = "courier:add")
	public void save(Courier courier) {
		courierRepository.save(courier);

	}

	/**
	 * 无条件查询
	 */
	@Override
	public Page<Courier> findPageData(Pageable pageable) {
		return courierRepository.findAll(pageable);
	}
	/**
	 * 有条件查询
	 */
	@Override
	public Page<Courier> findPageDataCondition(Specification<Courier> specification,Pageable pageable) {
		return courierRepository.findAll(specification, pageable);
	}

	@Override
	public void deleteCourier(String[] idArray) {
		for (String idStr : idArray) {
			Integer id = Integer.parseInt(idStr);
			courierRepository.updateDelTag(id);
		}
		
	}

	@Override
	public List<Courier> findNoAssociation() {
		// 封装Specification，查询没有被关联定区的快递员，
		Specification<Courier> specification = new Specification<Courier>() {
			@Override
			public Predicate toPredicate(Root<Courier> root, CriteriaQuery<?> query, CriteriaBuilder cb) {
				Predicate p = cb.isEmpty(root.get("fixedAreas").as(Set.class));
				return p;
			}
		};
		return courierRepository.findAll(specification);
	}

	@Override
	public List<Courier> findAssociationCourier(String fixedAreaId) {
		return courierRepository.findAssociationCourier(fixedAreaId);
	}

}
